Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 3 - Section 3.4 - Linear Equations in One Variable and Problem Solving - Exercise Set: 22

Answer

$7(x-1)=70\div10$ $x=2$

Work Step by Step

"Times" indicates multiplication. "Difference" indicates subtraction. "Quotient" indicates division. $7(x-1)=70\div10$ $\longrightarrow$distributive property $7x-7=70\div10$ $\longrightarrow$divide $7x-7=7$ $\longrightarrow$addition property $7x-7+7=7+7$ $\longrightarrow$simplify $7x=14$ $\longrightarrow$multiplication property $7x\div7=14\div7$ $\longrightarrow$simplify $x=2$
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